Measurement of the conformal coating thickness on vehicle-mounted circuit boards | SCI00532
SinceVision SinceVision
Conformal coating that protects substrates from moisture, saltwater spray, dust, and chemicals. To verify the film thickness related to its protective performance, we present a measurement case using SinceVision's SCI00532 spectral confocal displacement sensor.
It is important to manage not only the presence of a protective film on automotive substrates but also to ensure that the required thickness is maintained. In this case, we introduce a method for obtaining signals corresponding to the interface of the coating film with a single sensor head and calculating the film thickness from that information.
The official page lists a minimum measurable coating thickness of 30μm and a detection accuracy of 2μm. The resolution of the SCI00532 is 0.006μm. Thickness measurement with a single head can be utilized for quality confirmation in the coating process of automotive substrates.
We will consider application conditions based on the coating material, expected film thickness, substrate surface, and measurement position. If you are considering thickness management of the protective film or verification after coating, please inform us of the materials used and the necessary evaluation criteria.

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